component

PBSS4250X

Public Made by Adom

by adom

Nexperia Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PBSS4250X

Nexperia · Bipolar (BJT) · SOT-89

PBSS4250X from Nexperia, in a SOT-89. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 E passive Emitter terminal of the NPN transistor (Table 2 pinning: pin 1 is the emitter).
2 C passive Collector terminal of the NPN transistor; collector current IC is limited to 2 A continuous and 5 A peak (ICM, single pulse, tp ≤ 1 ms).
3 B passive Base terminal of the NPN transistor; base current IB is limited to 0.5 A.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-89
Category Transistors/Thyristors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-base voltage VCBO 50 V open emitter 2
Collector-emitter voltage VCEO 50 V open base 2
Emitter-base voltage VEBO 5 V open collector 2
Collector current IC 2 A 2
Peak collector current ICM 5 A limited by Tj(max); single pulse; tp ≤ 1 ms 2
Base current IB 0.5 A 2
Total power dissipation Ptot 550 mW Tamb ≤ 25 °C; device on FR4 PCB, single-sided copper, standard footprint 2
Total power dissipation Ptot 1 W Tamb ≤ 25 °C; device on FR4 PCB, single-sided copper, mounting pad for collector 1 cm2 2
Junction temperature Tj 150 °C 2
Ambient temperature Tamb -65 150 °C 2
Storage temperature Tstg -65 150 °C 2
Collector-base cut-off current ICBO 100 nA VCB = 50 V; IE = 0 A; Tamb = 25 °C 4
Collector-base cut-off current ICBO 50 µA VCB = 50 V; IE = 0 A; Tj = 150 °C 4
Emitter-base cut-off current IEBO 100 nA VEB = 5 V; IC = 0 A; Tamb = 25 °C 4
Collector-emitter cut-off current ICES 100 nA VCE = 50 V; VBE = 0 V; Tamb = 25 °C 4
DC current gain hFE 300 VCE = 2 V; IC = 0.1 A; Tamb = 25 °C 4
DC current gain hFE 150 VCE = 2 V; IC = 2 A; pulsed; tp ≤ 300 µs; δ ≤ 0.02; Tamb = 25 °C 4
Collector-emitter saturation voltage VCEsat 90 mV IC = 0.5 A; IB = 50 mA; Tamb = 25 °C 4
Collector-emitter saturation voltage VCEsat 250 mV IC = 1 A; IB = 50 mA; Tamb = 25 °C 4
Collector-emitter saturation voltage VCEsat 380 mV IC = 2 A; IB = 100 mA; Tamb = 25 °C 4
Collector-emitter saturation voltage VCEsat 320 mV 4
Collector-emitter saturation resistance RCEsat 160 mΩ IC = 2 A; IB = 200 mA; pulsed; tp ≤ 300 µs; δ ≤ 0.02; Tamb = 25 °C 4
Base-emitter saturation voltage VBEsat 1.1 V IC = 2 A; IB = 100 mA; Tamb = 25 °C 4
Base-emitter turn-on voltage VBEon 1.1 V VCE = 2 V; IC = 1 A; Tamb = 25 °C 4
Transition frequency fT 100 MHz VCE = 5 V; IC = 100 mA; f = 100 MHz; Tamb = 25 °C 4
Collector capacitance Cc 25 pF VCB = 10 V; IE = 0 A; ie = 0 A; f = 1 MHz; Tamb = 25 °C 4
Thermal resistance from junction to ambient Rth(j-a) 225 K/W in free air; FR4 PCB, single-sided copper, standard footprint [1] 3
Thermal resistance from junction to ambient Rth(j-a) 125 K/W in free air; FR4 PCB, mounting pad for collector 1 cm2 [2] 3
Thermal resistance from junction to ambient Rth(j-a) 90 K/W in free air; FR4 PCB, mounting pad for collector 6 cm2 [3] 3
Thermal resistance from junction to ambient Rth(j-a) 80 K/W in free air; ceramic PCB, 7 cm2, single-sided copper, tin-plated [4] 3
Thermal resistance from junction to solder point Rth(j-sp) 16 K/W 3

CAD (KiCad official)

  • Symbol: PBSS4250X
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: pbss4250x-etched.step / pbss4250x-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pbss4250x.step / pbss4250x.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (9 pp, sha256 83eb628dc875852c, retrieved 2026-10-15, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF